/* 
* Copyright (c) 2020, 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.  Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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function minusOne(n) {
  return n - 1;
}
function minusTwo(n) {
  return n - 2;
}
function fib(n) {
  if (n < 1) return 0;
  else if (n < 2) return 1;
  else return fib(minusOne(n)) + fib(minusTwo(n));
}

function main() {
  var prefix = "Three is the result ";
  var fib4 = fib(4);
  print(prefix + fib4);
}
main();
